Fiona Fennessy, MD
NPI 1548246762 · Diagnostic Radiology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Fiona Fennessy, MD is a Diagnostic Radiology Physician provider in Boston, MA (NPI 1548246762).
Provider details
- NPI number
- 1548246762
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 213979 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
287 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 122 | $89 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 50 | $88 |
| Mri Scan of Abdomen Before and After Contrast74183 | 26 | $105 |
| Mri Scan of Abdomen Before and After Contrast74183 | 20 | $106 |
| Mri Scan of Pelvis Before and After Contrast72197 | 19 | $106 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-20
- Last updated
- 2012-08-08
Frequently asked questions
- What is Fiona Fennessy's NPI number?
- Fiona Fennessy's National Provider Identifier (NPI) is 1548246762, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Fiona Fennessy's specialty?
- Fiona Fennessy is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Fiona Fennessy located?
- Fiona Fennessy's practice location on file with NPPES is 75 Francis Street, Boston, MA 02115.
- What is Fiona Fennessy's phone number?
- The practice phone number listed in the NPPES registry for Fiona Fennessy is (617) 632-4785.
- Does Fiona Fennessy accept Medicare?
- Fiona Fennessy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Fiona Fennessy's NPI active?
- Yes — Fiona Fennessy's NPI (1548246762) is active in the NPPES registry as of the last update on 2012-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.